Obtained 37 stack frames.
/usr/games/crawl-0.34(_Z17write_stack_traceP8_IO_FILE+0x3e) [0x5ae5faf2da9e]: write_stack_trace(_IO_FILE*)
/usr/games/crawl-0.34(_Z20crash_signal_handleri+0x18f) [0x5ae5faf2df0f]: crash_signal_handler(int)
/lib/x86_64-linux-gnu/libc.so.6(+0x42910) [0x7f5516842910]: 
/lib/x86_64-linux-gnu/libc.so.6(pthread_kill+0x11b) [0x7f551689999b]: 
/lib/x86_64-linux-gnu/libc.so.6(raise+0x16) [0x7f5516842866]: 
/lib/x86_64-linux-gnu/libc.so.6(abort+0xd7) [0x7f55168268b7]: 
/lib/x86_64-linux-gnu/libc.so.6(+0x27750) [0x7f5516827750]: 
/lib/x86_64-linux-gnu/libc.so.6(+0xa3c67) [0x7f55168a3c67]: 
/lib/x86_64-linux-gnu/libc.so.6(+0xa4978) [0x7f55168a4978]: 
/lib/x86_64-linux-gnu/libc.so.6(+0xa65b8) [0x7f55168a65b8]: 
/lib/x86_64-linux-gnu/libc.so.6(malloc+0x19a) [0x7f55168a824a]: 
/lib/x86_64-linux-gnu/libc.so.6(opendir+0x85) [0x7f55168e61a5]: 
/usr/games/crawl-0.34(_Z10dir_existsRKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE+0x31) [0x5ae5fb59dfa1]: dir_exists(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)
/usr/games/crawl-0.34(_Z11check_mkdirRKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEPS4_b+0xf6) [0x5ae5fb038036]: check_mkdir(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >*, bool)
/usr/games/crawl-0.34(+0x5ff53e) [0x5ae5fb03853e]: 
/usr/games/crawl-0.34(_Z20get_savedir_filenameRKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE+0x3b) [0x5ae5fb03c79b]: get_savedir_filename(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)
/usr/games/crawl-0.34(_Z13do_crash_dumpv+0x255) [0x5ae5faf3bb15]: do_crash_dump()
/usr/games/crawl-0.34(_Z20crash_signal_handleri+0x1fa) [0x5ae5faf2df7a]: crash_signal_handler(int)
/lib/x86_64-linux-gnu/libc.so.6(+0x42910) [0x7f5516842910]: 
/lib/x86_64-linux-gnu/libc.so.6(pthread_kill+0x11b) [0x7f551689999b]: 
/lib/x86_64-linux-gnu/libc.so.6(raise+0x16) [0x7f5516842866]: 
/lib/x86_64-linux-gnu/libc.so.6(abort+0xd7) [0x7f55168268b7]: 
/lib/x86_64-linux-gnu/libc.so.6(+0x27750) [0x7f5516827750]: 
/lib/x86_64-linux-gnu/libc.so.6(+0xa3c67) [0x7f55168a3c67]: 
/lib/x86_64-linux-gnu/libc.so.6(+0xa5ea4) [0x7f55168a5ea4]: 
/lib/x86_64-linux-gnu/libc.so.6(free+0x73) [0x7f55168a87f3]: 
/usr/games/crawl-0.34(+0xce9fa1) [0x5ae5fb722fa1]: 
/usr/games/crawl-0.34(+0xcdb5a9) [0x5ae5fb7145a9]: 
/usr/games/crawl-0.34(+0xce1e45) [0x5ae5fb71ae45]: 
/usr/games/crawl-0.34(+0xcdad06) [0x5ae5fb713d06]: 
/usr/games/crawl-0.34(+0xce09f6) [0x5ae5fb7199f6]: 
/usr/games/crawl-0.34(_ZN4CLua5closeEv+0xbe) [0x5ae5faf14bce]: CLua::close()
/usr/games/crawl-0.34(+0x2f5028) [0x5ae5fad2e028]: 
/usr/games/crawl-0.34(+0x2f7ff1) [0x5ae5fad30ff1]: 
/lib/x86_64-linux-gnu/libc.so.6(+0x280d0) [0x7f55168280d0]: 
/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0x89) [0x7f5516828189]: 
/usr/games/crawl-0.34(_start+0x25) [0x5ae5fae5ff95]: